Ill. Admin. Code tit. 44, § 30.35
d) Notice to the Secretary is not required if the procurement is advertised in the Illinois Procurement Bulletin or if the agency considers all certified vendors that provide the needed service. Notation to that effect shall be maintained by the agency in its file.
(Recodified from Section 10.35 of 44 Ill. Adm. Code 10 (Central Management Services) pursuant to P.A. 101-657, at 47 Ill. Reg. 279)